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Principle
The test is based on wave propagation theory. The name "low strain pile integrity test" stems from the fact that when a light impact is applied to a pile it produces a low strain.
The impact generates a stress wave that travels down the pile. When the downward stress wave encounters a change in cross section or in concrete quality, it generates reflected wave that is later observed at the pile top. By analyzing the propagation time, amplitude and phase of that reflected wave, it has evaluation of pile integrity ultimately.
The LSPIT-Testing is conducted in accordance to:
American Society of Testing Material, ASTM D5882: Standard Test Method for Low Strain Impact Integrity Testing.
Chinese Standard, JGJ 106: Technical Code for Testing of Building Foundation Piles and other relevant codes.
Characteristics:
1.Easy to carry, simple to operate
2.Continuous work for 10 hours
3.Structural stability and durability
4.Large dynamic range, high signal-to-noise ratio;
5.Support the bilingual operation, confirm to ASTM D5882
6.Support the wireless mode, the wireless distance can up to 50 meters or more
7.Waterproof ,more safety and reliability
8.High-brightness color LCD, backlight adjustable, suitable for all lighting conditions.
Specifications:
Size/Weight: approx. L220×W160×H56mm / 1.3kg with battery
Touch screen: 6.4-inch color display
Temperature Range in Operating: -5 ºC ~ +40 ºC
Temperature Range in Storage: -20 ºC ~ +70 ºC
Power: 10 working hours (internal battery)
Controlling System: Cortex AX Series
Operating System: Unix OS
Waveform Color & Background: changeable
Converter: 3×16 bit A/D converter
Sampling mode: Wireless/Wired
Sampling Interval: 5 to 65536 μs
Floating-point magnification: 1~256
Sampling Accuracy: within 0.01%
Trigger level: multiple level
System Noise Level: <20μv
Amplifier frequency range: 5Hz~12kHz
Frequency Bandwidth: 10 to 12000 Hz
Dynamic Range: ≥ 120dB
Data Storage: 800,000 waveforms data
Data Transfer Mode: USB 2.0
Data Length: 1k
Data Channel: 1 channels
Data Sensor: accelerometer, velometer
Field testing:
The test is based on wave propagation theory. The name "low strain pile integrity test" stems from the fact that when a light impact is applied to a pile it produces a low strain.
The impact generates a stress wave that travels down the pile. When the downward stress wave encounters a change in cross section or in concrete quality, it generates reflected wave that is later observed at the pile top. By analyzing the propagation time, amplitude and phase of that reflected wave, it has evaluation of pile integrity ultimately.
The LSPIT-Testing is conducted in accordance to:
American Society of Testing Material, ASTM D5882: Standard Test Method for Low Strain Impact Integrity Testing.
Chinese Standard, JGJ 106: Technical Code for Testing of Building Foundation Piles and other relevant codes.
Characteristics:
1.Easy to carry, simple to operate
2.Continuous work for 10 hours
3.Structural stability and durability
4.Large dynamic range, high signal-to-noise ratio;
5.Support the bilingual operation, confirm to ASTM D5882
6.Support the wireless mode, the wireless distance can up to 50 meters or more
7.Waterproof ,more safety and reliability
8.High-brightness color LCD, backlight adjustable, suitable for all lighting conditions.
Specifications:
Size/Weight: approx. L220×W160×H56mm / 1.3kg with battery
Touch screen: 6.4-inch color display
Temperature Range in Operating: -5 ºC ~ +40 ºC
Temperature Range in Storage: -20 ºC ~ +70 ºC
Power: 10 working hours (internal battery)
Controlling System: Cortex AX Series
Operating System: Unix OS
Waveform Color & Background: changeable
Converter: 3×16 bit A/D converter
Sampling mode: Wireless/Wired
Sampling Interval: 5 to 65536 μs
Floating-point magnification: 1~256
Sampling Accuracy: within 0.01%
Trigger level: multiple level
System Noise Level: <20μv
Amplifier frequency range: 5Hz~12kHz
Frequency Bandwidth: 10 to 12000 Hz
Dynamic Range: ≥ 120dB
Data Storage: 800,000 waveforms data
Data Transfer Mode: USB 2.0
Data Length: 1k
Data Channel: 1 channels
Data Sensor: accelerometer, velometer
Field testing: